Centralized administrative offices · California

SIE - San Mateo

San Mateo, CA · ~1,552 workers · 5 years of OSHA Injury Tracking Application data.

B
Good Safety Record
0.4
Avg TCR
0.7
Industry avg
0
Fatalities
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The verdict

SIE - San Mateo runs at 59% of its industry's injury rate - safer than the typical Centralized administrative offices workplace, earning a grade B.

SIE - San Mateo: 0.4 TCR = 59% of Centralized administrative offices BLS 0.7 · 5y Form 300A (see methodology below)

SIE - San Mateo safety composite

SIE - San Mateo scores strongest on total case rate (tcr) (safer than 63% of same-industry peers) and weakest on dart rate (safer than 36%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

D

51/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 0.41 per 100 workers

Safer than 63% of industry peers

DART rate
D 0.06 per 100 workers

Safer than 36% of industry peers

Fatalities
D 0

Safer than 51% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−0.5

2019→2023

SIE - San Mateo injury rate improved

SIE - San Mateo's TCR fell 0.5 from 0.9 in 2019 to 0.3 in 2023. Peak filing year was 2019 at 0.9 TCR. In 2023, DART was 0.15× this establishment's average TCR (severity share of cases).

2019=0.9 · 2020=0.5 · 2021=0.3 · 2022=0.1 · 2023=0.3

OSHA ITA Form 300A scorecard

Establishment book 551114 · San Mateo, CA AT/BELOW-IND · LARGE

Grade B · TCR 0.4 · 59% of ind

  • DART 0.1 DART
  • RANK #36/183
  • PHOTO Ecumen Shoreview
  • BOOK 5y book
  • INJ 24 inj
  • SIZE ~1,552 FTE

Nearest TCR peer: Ecumen Shoreview (0.0 TCR gap)

Read with this employer → · Industry book → · California employers → · Look up another →

SIE - San Mateo in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows SIE - San Mateo averages 0.4 TCR (59% of the Centralized administrative offices BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

SIE - San Mateo TCR series: 2019=0.9 · 2020=0.5 · 2021=0.3 · 2022=0.1 · 2023=0.3 · BLS 0.7

Where SIE - San Mateo falls in its industry

1,475 Centralized administrative off establishments

Safer than 63% of graded establishments in this industry, whose median TCR is 0.7.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #36 safest of 183 Centralized administrative off employers in California.

SIE - San Mateo (1,552 employees, TCR 0.4) among 29 same-industry peers, split at the industry median of 189 employees and a TCR of 0.7 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 01,0002,0003,0004,000 0246810 Average employees Total Case Rate SIE - San Mateo
SIE - San Mateo (1,552 employees, TCR 0.4) among 29 same-industry peers, split at the industry median of 189 employees and a TCR of 0.7

SIE - San Mateo has more employees than the Centralized administrative offices median and a lower injury rate than the industry's median TCR of 0.7. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2023 0.3 0.1 6 0 0
2022 0.1 0.1 1 0 0
2021 0.3 0.1 3 0 0
2020 0.5 0.1 4 2 0
2019 0.9 0.1 10 1 0

OSHA ITA peer cross-reference

Establishment peer ledger

551114 · CA · San Mateo

1,475 Centralized administrative offices employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 94 employers in San Mateo, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Ecumen Shoreview 0.4 TCR
NAICS-TCR Hantover Corporate 0.4 TCR
NAICS-TCR CA-Irwindale 6070 0.4 TCR
NAICS-TCR Lenexa Office 0.4 TCR
STATE-SIZE California State University Channel Islands 1,552 FTE
STATE-SIZE Gonsalves and Santucci 1,551 FTE
STATE-SIZE Eat Sweet Farms 1,555 FTE
STATE-SIZE 2032-08181501 1,555 FTE
CITY-NEAR California Department of Transportation Facility 132 2,891 FTE
CITY-NEAR IXL Learning Inc. 888 FTE
CITY-NEAR IXL Learning Inc. - San Mateo 491 FTE
CITY-NEAR Mills-Peninsula Medical Center (360-11) 464 FTE
NAT-TCR Tri-State Electrical Contractors 0.4 TCR
NAT-TCR Ellis Hotel 0.4 TCR
NAT-TCR Terex - Wilmington 0.4 TCR
NAT-TCR Marathon Petroleum Company Garyville LA 0.4 TCR
NAT-SIZE Kiawah Island Inn Company LLC 1,552 FTE
NAT-SIZE West Kendall Baptist Hospital Inc. 1,552 FTE
NAT-SIZE Adventist Hinsdale Hospital 1,553 FTE
NAT-SIZE William Rainey Harper College 1,553 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2023, 2022, 2021, 2020, 2019. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.